SimpleApp.java

   1 package org.argeo.cms.util;
   2
   3 import java.io.IOException;
   4 import java.io.InputStream;
   5 import java.util.ArrayList;
   6 import java.util.Arrays;
   7 import java.util.HashMap;
   8 import java.util.LinkedHashMap;
   9 import java.util.List;
  10 import java.util.Map;
  11
  12 import javax.jcr.Repository;
  13 import javax.jcr.RepositoryException;
  14 import javax.jcr.Session;
  15 import javax.jcr.security.Privilege;
  16 import javax.jcr.version.VersionManager;
  17
  18 import org.apache.commons.logging.Log;
  19 import org.apache.commons.logging.LogFactory;
  20 import org.argeo.cms.CmsConstants;
  21 import org.argeo.cms.CmsException;
  22 import org.argeo.cms.CmsSession;
  23 import org.argeo.cms.CmsUiProvider;
  24 import org.argeo.cms.LifeCycleUiProvider;
  25 import org.argeo.jcr.JcrUtils;
  26 import org.eclipse.gemini.blueprint.context.BundleContextAware;
  27 import org.eclipse.rap.rwt.application.Application;
  28 import org.eclipse.rap.rwt.application.Application.OperationMode;
  29 import org.eclipse.rap.rwt.application.ApplicationConfiguration;
  30 import org.eclipse.rap.rwt.application.EntryPoint;
  31 import org.eclipse.rap.rwt.application.EntryPointFactory;
  32 import org.eclipse.rap.rwt.application.ExceptionHandler;
  33 import org.eclipse.rap.rwt.client.WebClient;
  34 import org.eclipse.rap.rwt.service.ResourceLoader;
  35 import org.osgi.framework.BundleContext;
  36
  37 /** A basic generic app based on {@link SimpleErgonomics}. */
  38 public class SimpleApp implements CmsConstants, ApplicationConfiguration,
  39                 BundleContextAware {
  40         private final static Log log = LogFactory.getLog(SimpleApp.class);
  41
  42         private Map<String, Map<String, String>> branding = new HashMap<String, Map<String, String>>();
  43         private Map<String, List<String>> styleSheets = new HashMap<String, List<String>>();
  44
  45         private List<String> resources = new ArrayList<String>();
  46
  47         private BundleContext bundleContext;
  48
  49         private Repository repository;
  50         private String workspace = null;
  51         private String basePath = "/";
  52         private List<String> roPrincipals = Arrays.asList("anonymous", "everyone");
  53         private List<String> rwPrincipals = Arrays.asList("everyone");
  54
  55         private CmsUiProvider header;
  56         private Map<String, CmsUiProvider> pages = new LinkedHashMap<String, CmsUiProvider>();
  57
  58         private Integer headerHeight = 40;
  59
  60         public void configure(Application application) {
  61                 try {
  62                         application.setOperationMode(OperationMode.SWT_COMPATIBILITY);
  63                         application.setExceptionHandler(new CmsExceptionHandler());
  64
  65                         // loading animated gif
  66                         application.addResource(LOADING_IMAGE,
  67                                         createResourceLoader(LOADING_IMAGE));
  68                         // empty image
  69                         application.addResource(NO_IMAGE, createResourceLoader(NO_IMAGE));
  70
  71                         for (String resource : resources) {
  72                                 application.addResource(resource, new BundleResourceLoader(
  73                                                 bundleContext));
  74                                 if (log.isDebugEnabled())
  75                                         log.debug("Registered resource " + resource);
  76                         }
  77
  78                         Map<String, String> defaultBranding = null;
  79                         if (branding.containsKey("*"))
  80                                 defaultBranding = branding.get("*");
  81
  82                         // entry points
  83                         for (String page : pages.keySet()) {
  84                                 Map<String, String> properties = defaultBranding != null ? new HashMap<String, String>(
  85                                                 defaultBranding) : new HashMap<String, String>();
  86                                 if (branding.containsKey(page)) {
  87                                         properties.putAll(branding.get(page));
  88                                 }
  89                                 // favicon
  90                                 if (properties.containsKey(WebClient.FAVICON)) {
  91                                         String faviconRelPath = properties.get(WebClient.FAVICON);
  92                                         application.addResource(faviconRelPath,
  93                                                         new BundleResourceLoader(bundleContext));
  94                                         if (log.isTraceEnabled())
  95                                                 log.trace("Registered favicon " + faviconRelPath);
  96
  97                                 }
  98
  99                                 // page title
 100                                 if (!properties.containsKey(WebClient.PAGE_TITLE))
 101                                         properties.put(
 102                                                         WebClient.PAGE_TITLE,
 103                                                         Character.toUpperCase(page.charAt(0))
 104                                                                         + page.substring(1));
 105
 106                                 // default body HTML
 107                                 if (!properties.containsKey(WebClient.BODY_HTML))
 108                                         properties.put(WebClient.BODY_HTML, DEFAULT_LOADING_BODY);
 109
 110                                 //
 111                                 // ADD ENTRY POINT
 112                                 //
 113                                 application.addEntryPoint("/" + page, new CmsEntryPointFactory(
 114                                                 pages.get(page), repository, workspace, properties),
 115                                                 properties);
 116                                 log.info("Registered entry point /" + page);
 117                         }
 118
 119                         // stylesheets
 120                         for (String themeId : styleSheets.keySet()) {
 121                                 List<String> cssLst = styleSheets.get(themeId);
 122                                 for (String css : cssLst) {
 123                                         application.addStyleSheet(themeId, css,
 124                                                         new BundleResourceLoader(bundleContext));
 125                                 }
 126
 127                         }
 128                 } catch (RuntimeException e) {
 129                         // Easier access to initialisation errors
 130                         log.error("Unexpected exception when configuring RWT application.",
 131                                         e);
 132                         throw e;
 133                 }
 134         }
 135
 136         public void init() throws RepositoryException {
 137                 Session session = null;
 138                 try {
 139                         session = JcrUtils.loginOrCreateWorkspace(repository, workspace);
 140                         VersionManager vm = session.getWorkspace().getVersionManager();
 141                         if (!vm.isCheckedOut("/"))
 142                                 vm.checkout("/");
 143                         JcrUtils.mkdirs(session, basePath);
 144                         for (String principal : rwPrincipals)
 145                                 JcrUtils.addPrivilege(session, basePath, principal,
 146                                                 Privilege.JCR_WRITE);
 147                         for (String principal : roPrincipals)
 148                                 JcrUtils.addPrivilege(session, basePath, principal,
 149                                                 Privilege.JCR_READ);
 150
 151                         for (String pageName : pages.keySet()) {
 152                                 try {
 153                                         initPage(session, pages.get(pageName));
 154                                         session.save();
 155                                 } catch (Exception e) {
 156                                         throw new CmsException(
 157                                                         "Cannot initialize page " + pageName, e);
 158                                 }
 159                         }
 160
 161                 } finally {
 162                         JcrUtils.logoutQuietly(session);
 163                 }
 164         }
 165
 166         protected void initPage(Session adminSession, CmsUiProvider page)
 167                         throws RepositoryException {
 168                 if (page instanceof LifeCycleUiProvider)
 169                         ((LifeCycleUiProvider) page).init(adminSession);
 170         }
 171
 172         public void destroy() {
 173                 for (String pageName : pages.keySet()) {
 174                         try {
 175                                 CmsUiProvider page = pages.get(pageName);
 176                                 if (page instanceof LifeCycleUiProvider)
 177                                         ((LifeCycleUiProvider) page).destroy();
 178                         } catch (Exception e) {
 179                                 log.error("Cannot destroy page " + pageName, e);
 180                         }
 181                 }
 182         }
 183
 184         public void setRepository(Repository repository) {
 185                 this.repository = repository;
 186         }
 187
 188         public void setWorkspace(String workspace) {
 189                 this.workspace = workspace;
 190         }
 191
 192         public void setHeader(CmsUiProvider header) {
 193                 this.header = header;
 194         }
 195
 196         public void setPages(Map<String, CmsUiProvider> pages) {
 197                 this.pages = pages;
 198         }
 199
 200         public void setBasePath(String basePath) {
 201                 this.basePath = basePath;
 202         }
 203
 204         public void setRoPrincipals(List<String> roPrincipals) {
 205                 this.roPrincipals = roPrincipals;
 206         }
 207
 208         public void setRwPrincipals(List<String> rwPrincipals) {
 209                 this.rwPrincipals = rwPrincipals;
 210         }
 211
 212         public void setHeaderHeight(Integer headerHeight) {
 213                 this.headerHeight = headerHeight;
 214         }
 215
 216         public void setBranding(Map<String, Map<String, String>> branding) {
 217                 this.branding = branding;
 218         }
 219
 220         public void setStyleSheets(Map<String, List<String>> styleSheets) {
 221                 this.styleSheets = styleSheets;
 222         }
 223
 224         public void setBundleContext(BundleContext bundleContext) {
 225                 this.bundleContext = bundleContext;
 226         }
 227
 228         public void setResources(List<String> resources) {
 229                 this.resources = resources;
 230         }
 231
 232         class CmsExceptionHandler implements ExceptionHandler {
 233
 234                 @Override
 235                 public void handleException(Throwable throwable) {
 236                         CmsSession.current.get().exception(throwable);
 237                 }
 238
 239         }
 240
 241         private class CmsEntryPointFactory implements EntryPointFactory {
 242                 private final CmsUiProvider page;
 243                 private final Repository repository;
 244                 private final String workspace;
 245                 private final Map<String, String> properties;
 246
 247                 public CmsEntryPointFactory(CmsUiProvider page, Repository repository,
 248                                 String workspace, Map<String, String> properties) {
 249                         this.page = page;
 250                         this.repository = repository;
 251                         this.workspace = workspace;
 252                         this.properties = properties;
 253                 }
 254
 255                 @Override
 256                 public EntryPoint create() {
 257                         SimpleErgonomics entryPoint = new SimpleErgonomics(repository,
 258                                         workspace, basePath, page, properties);
 259                         // entryPoint.setState("");
 260                         entryPoint.setHeader(header);
 261                         entryPoint.setHeaderHeight(headerHeight);
 262                         CmsSession.current.set(entryPoint);
 263                         return entryPoint;
 264                 }
 265
 266         }
 267
 268         private static ResourceLoader createResourceLoader(final String resourceName) {
 269                 return new ResourceLoader() {
 270                         public InputStream getResourceAsStream(String resourceName)
 271                                         throws IOException {
 272                                 return getClass().getClassLoader().getResourceAsStream(
 273                                                 resourceName);
 274                         }
 275                 };
 276         }
 277
 278         // private static ResourceLoader createUrlResourceLoader(final URL url) {
 279         // return new ResourceLoader() {
 280         // public InputStream getResourceAsStream(String resourceName)
 281         // throws IOException {
 282         // return url.openStream();
 283         // }
 284         // };
 285         // }
 286
 287         /*
 288          * TEXTS
 289          */
 290         private static String DEFAULT_LOADING_BODY = "<div"
 291                         + " style=\"position: absolute; left: 50%; top: 50%; margin: -32px -32px; width: 64px; height:64px\">"
 292                         + "<img src=\"./rwt-resources/" + LOADING_IMAGE
 293                         + "\" width=\"32\" height=\"32\" style=\"margin: 16px 16px\"/>"
 294                         + "</div>";
 295 }